Register



April 7, 1942- e. c. CHASE 2,278,863

' REGISTER Filed March 1, 1940 2 Sheets-Sheet 1 INVENTOR G 9 Chase 4% ATTORNEY G. C. CHASE April 7, 194 2.

REGISTER Filed March 1, 1940 2 Sheets-Sheet 2 4 INYENTOR CC base giomuzv George Patented Apr. 7, 1942 REGISTER George 0. Chase, South Orange, N. J.,' assignor to Monroe Calculating Machine Company, Orange, N. J., acorpo'ration of Delaware Application March 1, 1940, Serial N6. 321,732

- (crass-ear Claims.

This invention relates to zero setting and value transporting mechanism for accumulating and indicating" devices which may be used for the registration of totals, remainders, products, grand totals, etc.

In some'of its aspects it pertains-to an accumulator embodying a self-contained tens transfer mechanism of thecrawl transfer type, inasmuch as it provides improved means for re setting-the numeral wheels of such an accumulator to zero through the digital actuating train which serves for the operation of said wheels.

" In other respects, it pertains to a combination of accumulating and grand totalizing mechanisms which are inter-related through a common zero setting mechanism 'which may reset the wheels of either mechanism to zero, and otherwise oper- 1939; and No. 316,738, filed February 1, 1940; which is similar to the register mechanism of United .States Patent No. 2,089,682, issued to George C. Chase on AugustlO, 1937. These disclosures illustrate the uses of the invention in connection-with any wheel to wheel tens transfer type of register, as well as its more specific uses with a register of the crawl transfer type, with or without the feature of normal reading alignment which is shown in the applications and the patent.

Insofar asthe parts shown in the present application correspond with parts shown in the ate the mechanism to provide for the several uses to which they may be put.

This invention further provides a zero setting actuator for arr-accumulator of the self-con- "tained wheel to wheel tens'transfer type which is in itself a grand total register without requiring 1 any additional parts.

The zero setting actuator as shown is built into the carriage with the accumulator, and is adapted to turn all of the wheels-of the accumulator to zero. Fig. 1 is a sectional view of the accumulator, taken on the line l-l of Fig. 2.

Fig. 2 shows in cross sectionanumeral wheel of the units order of the accumulator, the right hand supporting frame, an intermediate supporting frame. and the gear members related to- I the numeral wheel of the tens order.

Fig. 3 is a sectional view taken on line 33 of Fig. 2; showing the transfer alignor cam carried.

by each numeral wheel exceptv the one of highest order. t

Fig. 4 is a sectional View taken just inside the right end frame of the register carriage, with the parts in the position taken when the carriage is at theextreme left.

Fig. 5 is an elevation of the parts located in the right hand end of the carriage.

Fig. 6 shows a modified form of one ofthe elements of Fig. 4.

' In Figs. -1 and 4 the intermediate supporting issued patent, like part numbers will be used. That patent and the co-pending applications show no zero setting mechanism for the accumulator, and make no provision for the return of the accumulator wheels to zero through the taking of a total as is commonly done if listing mechanism is'provided.

United States Patent No. 1,932,013, lssued'to .Loring P. Crosman on October 24, 1933, shows a listing machine having an accumulator of the crawl transfer type, but in order to restore the numeral wheels of said Crosman patent to zero, as in the total taking operation, it is essential that a successive zero setting action be provided, in which-the numeral'wheel of lowest order shall be cleared first; then the tens order, etc. There are various reasons for this requirement of successive zero setting of the numeral wheels of the Crosman patent, one of which would apply equally to a zero setting mechanism adapted to clear the accumulator of applicants patent, or

nism were applied to an accumulator constructed frames l5l which are shown in Fig. 2 are omitted for clearness.

In the drawingsthe invention is shown as it might be used in conjunction with the' register mechanism of apnlicants co-pending applications for United States Patent, No. 176,156, filed November 24, 1937; No. 285,860, filed July 22,

in accordancewith the disclosures of Patent No. 2,089,682, or the co-pending applications, a cramping action would occur under certain conditions between the pinion 412, the sleeve of the eccentric hub 43!), and the shaft 4% upon which these parts are mounted, as shown in Figs. 1 and 3- of that patent. This cramping action would occur in case the higher of two adjacent wheels is driven against its zero stopahead of the lower order wheel, after which the member which moved said higher wheel to zero by rotating its pinion 412 reversely continues to press said wheel firmly against its zero stop, crowding the pinion hard against the'sleeve, which is in turn pressed against shaft 403 during the time when the sleeve is to be rotated reversely by continued movement of the lower wheel. It has been'observed in practice that this squeezing effect upon the sleeve may reach such proportions as to require positive instead of spring or frictionally impelled means for simultaneously resetting numeral wheels so constructed to zero. The present invention embodies improvements which eliminate this cramping action.

As shown in Figs. 1 and 4, digital values are transmitted to the numeral wheels 413 from the units order of the accumulator, this gear is.

mountedon a fixed eccentric hub, .while in each higher order, it is mounted on an eccentric hub 438 which rotates with the numeral wheel of next lower order. The floating gear 418 .meshes with internal teeth 413' of the numeral wheel 413, to transmit both direct digital and tens transfer values to that wheel, the first by rotary movement and the other by an orbital move ment transmitted by hub 438. The gear 418 has nine-tenths as many teeth as the internal gear 413', thus providing for the tens transfer 'movement, as floating gear 418 is carriedabout its orbit.

A pin 481 is secured in each wheel, and passes through a slot formed in the alignor cam 485 related to each wheel excepting the one of highest order. A spring 488 is secured at one end to the pin, and at the other-to the cam, to normally hold one end of the slot against the. pin as shown in Fig. 3. This flexible connection between the numeral wheel ,and the alignor cam serves no new purpose in connection with the present invention, its purpose being described in United States Patent No. 2,089,682.

Each alignor lever 483 (Fig. 1) is provided with a lug 484 which may take its position against the alignor cam 485 of the next lower numeral wheel, under the influence of the spring 488.

Alignor gear 482 (forming part of the above mentioned transmission train) is mounted on this lever, and meshes on itsforward side with the pinion 412 of the numeral wheel of the same order, and on its rearward side with the gear As the alignor lever 483 and the alignor gear 482 are lifted by cam 485 of a lower order wheel, a retractive or'minus movement is imparted to the related numeral wheel, which is sufficient to counteract the crawl transfer effect which would otherwise be transmitted to that wheel from the'wheel of next lower order.

A ball 488 (Figs. 4 and 5) is provided to lift all of the alignor levers during registering operations, permitting a free and uniform speed rotation of each numeral wheel. the lugs 484 of the several alignor levers rest against their related alignor cams.

The pin 481 which drives the alignor cam also engages an arm I46, formed on a sleeve of the eccentric hub 438, to drive the latter member in time with the next lower numeral wheel.

Since there are a greater number of numeral wheelsin the register carriage 2 than output gears 411 in the base frame I of the machine, detents I41 (Fig. 4 are provided to prevent accidental displacement of the overhanging numeral wheels. Springs I48 impel the forward- 1y extending hooked arms of the detents between Normally, however,

the teeth of gears 488, unless some means provents this action. Plate I49 is secured to the stationary frame I of the machine, and holds all of the detents disengaged in orders in which the gears 488 are in mesh with the output gears 411. Recesses may be provided in the forward edge of this plate, to permit the dropping of the detents while the carriage is shifting, at which time the gears 488 may move from one to another of the gears 411.

The gear 488 should preferably be made wider than the gear I58 (to be hereinafter described) in order that the detent I41 may engage with the gear 488 and not interfere with the rotation of gear I58.

A supporting frame I51 (Fig. 2) is located between each two adjacent numeral wheels, and is provided with a cylindrical bearing, upon which the pinion 412 is mounted, while the sleeve of the eccentric hub 438 which rotates with the wheel of next lower order is mounted within the bearing, so that any radial pressure from the pinion may not be transmitted to the sleeve. This eliminates the cramping action referred to above, and permits the combination of this mechanism with any zero setting means which simultaneously drive the numeral wheels against a zero stop, by yieldable means acting through the differential actuating transmission train. The intermediate supporting frames I5I are also advantageous in maintaining alignment of the accumulator elements of a four rules calculating machine, which is frequently provided with twenty or more numeral wheels.

The numeral wheels 413 and the alignor cams 485 are mounted for rotation concentric with the sleeves of the eccentric hubs 438 by means of a sectional shaft 483, the sections of which are in turn supported at each end within the sleeves of the eccentric hubs. By this arrangement a numeral wheel and its alignor cam may rotate upon their supporting shaft, or the shaft may rotate individually within the sleeves, whichever offers the least frictional resistance to rotation. 4

The shaft sections are held in their proper longitudinal position by means 'of adjustable screws I52, one in each end frame of the carriage, these screws being so adjusted as to permit slight endwise freedom between the shaft sections.

The alignor cams and the numeral wheels may be readily removed from the machine by removing screws I52 and the shaft sections, unh0ok ing the springs 488 from the pins 481, and removing the cams, which provide the space necessary for the removal of the wheels. Any wheel and its related cam may be individually removed from the machine at will by the use of the well known follow through" shaft which is used to push out some but not all of the shaft sections, according to the position of the wheel which it is desired to remove, then retracting said shaft the distance of one numeral wheel space to free that wheel and its cam.

The use of a separate shaft section for each wheel, instead. of a single shaft extending through the several wheels, eliminates any tendency to bind the sleeves of the eccentric hubs 438,

resulting from imperfect alignment of the sleeve, or lack of straightness of the shaft.

Secondary actuator The numeral wheels are normally driven by the output gears 411 of the differential actuator mechanism, but may alternatively. be driven by the gears I50 which are mounted on the power shaft I53 (Fig. 4). Spring impelled plunger pins I64 carried by collars secured to the shaft engage each with one of a series of depressions formed in the adjacent gear, so that the gears will be driven in the rotation of the shaft unless held by some means, in which case the plunger pins will yield,; permitting the shaft to complete its rotation. Such a construction is extensively used in the zero setting mechanism of calculating machines and is well known.

Each gear I50 is provided with a pin I55 which serves to limit the movement of the gear by contact with a tooth I56, secured upon the housing of the carriage. As shown in Fig. 4, the gear I50 is in its zero position.

on the shaft. I53, and its upwardly extending end passes through a slot in the carriage housing,'and is provided with a key button I10 which As will be explained hereinafter, the gears I50 itself capable of indicating a grand ,total value as well as serving asa zero setting actuator for the accumulator 413, these grand'total -values being readable (or printabl if listing mechanism, is provided) by first transporting them ,back to the accumulator. I Selective meshing mechanism A key I60 (Fig. 5) is provided for lifting the gear 480 from engagement with gear 411 and into engagement with the gear I50. Depr'ession'of this keyrocks a lever IN to which it is pivoted.

This lever is pivotally mounted on a fixed stud I62 and is providedwith a rearwardly extending arm which lifts a shaft I 63. This shaft is mounted to rotate in arms I64 (Figs. 2 and 4), there being one of these arms at each end of the accumulator, with intermediate arms if necessary. These arms are pivoted at their forward ends upon the axis of the numeral wheels 413. Pinions I65 are secured to each end of shaft I63, and engage with fixed racks I66 so that the shaft is rotated as it is lifted, and maintained in a hori zontal position, carrying the arms I64 with it. A rod I61 underlies the rearward ends of the arms, limiting their downward movement.

Shaft 4 8I upon which the gears 480 are free to rotate, is carried bythe arms I64, formingtherewith an oscillatory frame. The supporting frames I5I are not shown in Figs. 1 and 4, but slots are to be provided in these frames to permit the lifting of this shaft. Springs I66 tend to hold the gear 480 normally in mesh with gears 411.

The alignor levers 403 are also pivotally mounted on shaft I, as seen in Fig. 1, so the alignor gears 462 which may stand in various positions, according to the position of the next lower numeral wheel (excepting the gear 482 of ,may be pressed manually to effect the release. A releasing lever "I is pivoted on the latch, and provided with a lug I12 which is impelled by a spring I13 against the rearward edge of the latch, these two parts normally acting as one and the spring functioning to snap the latch beneath the shaft 48I. Automatic means are provided to release the latch at the end of each clockwise rotation of shaft I63. Spring impelled plunger pin I14 is mounted near the right handend of this shaft and serves to rotate cam I15 in a clockwise direction, but not ina counterclockwise direction. A nose of follower lever I16 normally .rests in a notch of the cam, and is positioned rearwardly during substantially the entire cycle of clockwise rotation of the cam. During its rearward movement, the lower end of the lever encounters a lug I11 formed on the releasing lever I1I, depressing the lever and passing to the rearward side of the lug. which resumes its previous position under the influence of the spring I12. When the nose of the lever falls back into the notch at the end of one revolution in a clockwise direction (under the influence of spring I10 as will be hereinafter described) the lower end of the lever encounters the lug I11, and the angle 30 'of the contacting faces is such that the lever. "I will not be depressed, but the latch I69 will be carried forward, allowing the shaft to resume its normal position with the gear 460 in mesh with the gears 411. In thisaction the latch I66 is carried forwardly somewhat more than is required to release the shaft I, in order that .the lug I11 which is moving in an are about shaft I53, may escape from the lower end of lever I16, after which the spring I13 retracts the latch until it rests against the forward side of shaft I, the lug 411 at the same time swinging beneath the lower end of lever I16 and coming to rest In the position shown in Fig. 5. The slot in the carriage housing through which the upper arm of the latch passes is long enough so that the arm may move a short distance rearwardly, and a greater distance forwardly from the position in which it is shown.

When the gears the gears' I it is essential that the detents I41 the gears 480 which stood at the right or the leftof the output gears 411 of the differential actuator mechanism shall be lifted. These detents are mounted on the shaft I63 which is lifted as previously described whenever key I60 is depressed, carrying rearwardly extending arm I19 of the detents against the rod I61, withdrawing any detents which may have previously engaged the gears. The numeral wheels 413 are now sub- I ject to: the control of the gears I50.

. Setting of the zero stop rocker frame Whenever the shaft I53 and the cam I15 are rotated one revolution clockwise, rocking the lever I16 rearwardly and holding it set until the endof the cycle, the rearward edge of said lever presses against a pin I00 which is mounted in an arm I 8| which forms the right hand end of a zero 6 stop rocker frame I 82 which bridges all of the numeral wheels 413 and is pivoted at each end of the carriage on the fixed studs I62. The lever I16 is pinned to the shaft I59 on the left hand end of which there is secured a duplicate lever m are lifted into mesh with which acts on a second pin I80 in the left hand arm IOI, to provide for parallel operation of the zero stop rocker frame I82. This frame .is provided with upstanding fingers I84 which normally stand out of the path of travel of the pins 481 of the numeral wheels (Figs. 2 and 5),, but are moved into the path of these pins to arrest the wheels at zero as they are rotated in a subtractive direction in zero setting operations. Upon the completion of a cycle of operation of the shaft I53 and the cam I in a clockwise direction, the rocker frame I 82 resumes its normal position under the influence of spring I18.

Rotation of shaft 153 The shaft I53 is adapted for selective rotation in either direction, according to the function it has to perform. In a commercial machine it should preferably be operated by motor power under the control of selectively operable function keys, but such a driving means forms no part of the present invention and is not shown. This shaft could be driven selectively in either direc-' tion by a hand crank applied to its right hand end. A spring impelled locating roller I85 (Fig. 5) rides a cam I86 secured to shaft I53 to facilitate the location of said shaft in full cycle position.

Elemental operations Total taking and value transporting operations of the numeral wheels 413 through the differential actuator gearing 411 are facilitated by this invention, since the crawl transfer accumulator wheels may be zeroized simultaneously. Aside from this there are five different and useful operations which may be performed by the selective rotation of shaft I53, in some of which the keys I60 and I10 must also be used. These five operations are:

1. Clearing the grand total indicator 2. Transporting values from the accumulator to the grand total indicator 3. Transporting values from the grand total indicator to the accumulator 4. Accumulating grand totals 5. Clearing the accumulator Four elemental operative movements are involved in these five different operations, as follows:

(a) Depression of the key I60 (22) One cycle of clockwise rotation of shaft I53 (0) One cycle of counter-clockwise rotation of shaft I53 (d) Operation of key I10 stood at zero when operation No. 2 was started.

At the end of this operation the gears 480 resume their engagement with the output gears 411 of the differential actuator mechanism, as previously explained.

Operation No. 3 is effected by movements (a) (c) and (d). The rotation of shaft I53 in counter-clockwise direction in this operation clears the grand total indicating wheels I51, transporting the value to the accumulator 413 where it .will be added to any previous value which may have been registered. If accumulator 413 previously registered a complemental (negative) value the effect will be subtractive. Operation of key I10 following the rotation of shaft I53 restores the gears 480 to their normal engagement with gears 411.

Operation N0. 4 is effected by movements (a), (c) and (b). In movement (0) the indicating wheels I51 are cleared, transporting the value to the accumulator 413 where it is added. to. the newly registered total to accumulate a new grand total, which is then cleared from the accumulator 413 and transported to the grand total indicating wheels in movement (1)), at the end of which operation latch I69 is automatically released, permitting the gears 480 to resume their normal position in engagement with gears 411.

Operation No.5 is effected by movements (11), (b) and (c). In movement (1)) the accumulator 413 is cleared to zero, transporting the value to the grand total indicator 151 which, if constructed according to Fig. 4, must have stood at zero before this operation was started. At the end of movement (b) the gears 480 are automatically released from engagement with gears I so that in movement (0) the grand total indicator I51 is cleared to zero.

If the grand total indicating wheels I51 were used'only for the purpose of indicating grand total accumulations the occasion would not arise to clear the accumulator 413 at a time when the grand total indicator is not clear. Since, however, this grand total indicator may advantageously be used for the storage of any value which may be taken from the accumulator, the occasion may arise to clear the accumulator 413 and the indicating wheels I51 in one operation. Fig. 6 shows a modified form of the stop teeth which permits this operation. In this modified form the stop arms I81, which take the place of the teeth I56 of Fig. 4, are splined to shaft I50 which, it will be recalled, is held yieldably against counter-clockwise rotation by spring arm I8I. This arrangement will permit the passing of pins I in a clockwise but not in a counter-clockwise direction, so that the accumulator wheels may be rotated to zero in movement (22) regardless of the point from which pins I55 start the movement, after which the grand total indicator is cleared in movement (0) In this operation key IE0 is depressed, toraise and latch frame I64, and

. shaft I53 is rotated clockwise, raising stops I84,

rocking stops I81 away from gears I50 and rotating gears I50, to clear the accumulator. At the end of this clockwise rotation latch I6! is automatically released to allow frame I64 to drop, and cam I15 will allow stops I81 to swing toward gears I50. Counter-clockwise rotation of shaft I53 will now clear the wheels I51.

It is perhaps important to note that in all operations in which an accumulator wheel 413 is driven by the gear I50 in a substractive direction, in which operations the zero stop rocker frame I82 is lifted, the alignor gears 462 and the alignor levers 483 are free from bail 489, andare thus impelled downwardly by springs 486, holding the lugs 484 against the alignor cams 485,30 that the accumulator wheels 413 will start the zero setting operation from aligned reading position. If the lugs of the alignor levers were to be lifted from the alignor cams before the zero stop rocker frame I82 is positioned in the path of the pins 481, an erroneous value might be transported from the accumulator. This impelling of the alignor gears downwardly during the clearing of the accumulator is another feature which permits the accurate printing of totals or sub-totals and the transporting of values to other registers by a simultaneous instead of a successive zero setting acting as required according to the disclosure of the previously mentioned Crosman patent.

In operations in which the accumulator wheels are driven in a plus d'n'ection there is a tendency to lift the lug of the alignor lever 483 away from its related alignor cam, shifting the next higher numeral wheel into crawl position. have the wheels from the frictional resistance of the lever, and will not affect the registration, as in any plus registration the alignor lever and gear may either ride the alignor cam, or may be lifted to its limit stop to barely clear the cam.

Although the construction provides for the lifting of the alignor gears and levers in additive and subtractive registrations from the differential actuator output gears 411, the onlytime at which the alignor gears must be lifted by bail 489 is during subtractive rotation from the said output This will restorage gears with said accumulator for relative directions of movement which upon rotation of therefor, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft, and a series of zero stops adapted to arrest rotation of said gears of an oscillatory frame, transmission gearing mounted on said frame and adapted in a given oscillated position of the frame to connect said the drive shaft in a given direction will bring the storage gears to zero against the second-named connected to said shaft and a series of zero stops mulating or zero setting operation from either of two sources permits the restoration to zero of as Other uses of the grand total indicator Aside from serving for the indication of a grand total, wheels l5! may, as previously mentioned, serve for the storage of values taken from the accumulator 4'13, these values to be subsequently read and used by the operator, after which the grand total indicator is cleared by operation No. 1, or printed 'or transported to other registers for various purposes by transporting them back to the cleared accumulator by operation No. 3 and thence to the other point of use. r

I claim:

1. In a register, the combination with a series of wheels adjustable to represent digit values, a series of zero stops adjustable into position to arrest the rotation of said wheels, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft, and a series of zero stops adapted to arrest rotation of said gears of an oscillatory frame, transmission gearing mounted on said frame and adapted in one oscillated position of the frame to connect said storage gears with said digit value Wheels for relative directions of movement which upon rotation of the drive shaft in a given direction will bring the storage gears to zero against the second-named stops, and upon rotation of the drive shaft in the opposite direction will bring the wheels to zero against the first-named stops, and a settable device controlling the oscillated position of said frame.

2. In a register, the combination with an accumulator, normally inoperative zero stops adapted to arrest rotation of said gears of an oscillatory frame, transmission gearing mounted on said frame and adapted in a given oscillated position of the frame to connect'said storage gears with said accumulator for relative directions of movement which upon rotation of the drive shaft in a given direction will bring the storage gears to zero against the second-named stops, and upon rotation of the drive shaft in the opposite direction will bring the accumulator to zero against the first-named stops, a device adjustable to oscillate said frame into said given position, means operable by the drive shaft in the last named direction of rotation thereof only to move the first-named zero stops into active position, and means operably by the drive shaft to release the oscillatory frame from transmission engaging position at the end of the accumulator zeroizing rotation of said shaft.

4. In a register, the combination with an accumulator, normally inoperative zero stops therefor, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft and a series of zero stops adapted to arrest rotation of said gears of an oscillatory frame, transmission gearing mounted on said frame and adapted in a given oscillated position of the frame to connect said storage gears with said accumulator for relative directions of movement which upon rotation of the drive shaft in a given direction will bring the storage gears to zero against the second-named stops, and upon rotation of the drive shaft in the opposite direction will bring the accumulator to zero against the first-named stops, a manually releasable latch adapted to hold said frame in transmission engaging position, a device adjustable to oscillate said frame into latched position,

means operable by the drive shaft in the last named direction of rotation thereof only to move the first-named zero stops into active position, and means cooperating with said moving means to release the latch at the end of the accumulator zeroizing rotation of said shaft.

5. In a register, the combination with an accumulator, normally inoperative zero stops therefor, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft and a series of zero stops adapted to arrest rotation of said gears of an oscillatory frame, transmission gearing mounted on said frame and adapted in a given oscillated position of the frame to connect said storage gears with said accumulator for relative directions of movement which upon rotation of the drive shaft in a given direction will bring the storage gears to zero against the second-named stops, and upon rotation of the drive shaft in the opposite direction will bring the accumulator to zero against the first named stops, a manually releasable latch adapted to hold said frame in transmission engaging position, a device adjustable to oscillate said frame into latched position, a. cam having ratchet connection with the drive shaft, a lever operable by said cam to move the first-named zero stops into active position, and means operable by said lever in the return movement thereof to release the latch.

6. In a register having a stationary frame, a laterally shiftable carriage mounted thereon, differential actuating means mounted in said frame, an accumulator mounted in said carriage, and clearing devices including yieldably driven gears mounted in said carriage; the combination with an oscillatory frame mounted in said carriage,

and transmission gearing mounted on said oscillatory frame and adapted to connect the accumulator with the actuating means or alternatively with the clearing gears in accordance with the oscillated position of said frame; of detents mounted on the oscillatory frame and engageable with the transmission gearing, cam means on the stationary frame operable upon movement of the carriage to disable the detents related to transmission gears brought by the carriage into cooperative relation with the actuating means, and an abutment member mounted in the carriage and acting upon movement of the oscillatory frame to engage the transmission gearing with the clearing gears to disable all of the detents.

7. In a register having differential actuating means, an accumulator comprising a shaft, numeral wheels mounted thereon, and direct wheel to Wheel tens transfer gearing, and clearing devices including yieldably driven gears and zero stops for said numeral wheels; an adjustable frame mounted upon the numeral wheel shaft, transmission gearing mounted on said frame and adapted to connect the accumulator with the actuating means or alternatively with the clearing gears in accordance with the adjusted position of said frame, said transmission gearing including gears individually displaceable to counteract the transfer of partial digit values in said accumulator, and means for aligning said displaceable gears to provide for the transfer of said partial digit values, the parts being so designed that adjustment of the frame will cause pivotal movement of the displaced gears about the numeral wheel shaft in transfer counteracting position.

aavaaea 8. In a register having an accumulator comprising numeral wheels and direct wheel to wheel tens transfer gearing, and Zero stops for said wheels; the combination with a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft, and a series of zero stops adapted to arrest rotation of said gears; of transmission gearing adapted to connect said storage gears with said accumulator for relative directions of movement which upon rotation of the drive shaft in one direction will bring the accumulator to zero against the first-named stops and upon rotation of the drive shaft in the other direction will bring the storage gears to zero against the secondnamed stops, said transmission gearing including gears individually displaceable to counteract the transfer of partial digit values in said accumulator, and means including cams and followers for displacing the last-named gears upon rotation of the gears and numeral wheels in a given direction, said last-named gears being operable upon rotation thereof in the opposite direction to lift the followers from the cams.

9, In a register, the combination with an accumulator, zero stops therefor, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft; of an oscillatory frame, transmission gearing mounted on said frame and adapted in a given oscillated position of the frame to connect said storage gearswitn said accumulator for relative directions of movement which upon rotation of the drive shaft in a given direction will bring the accumulator to zero against the stops, means operable at the end of a single stated rotation of the drive shaft to release the oscillatory frame from transmission engaging position, and zero stops operable to arrest the value storage gears in the opposite direction of rotation of the drive shaft only.

10. In a register, the combination with an accumulator, adjustable zero stops therefor, a forwardly and reversely rotatable drive shaft, a series of value storage gears yieldably connected to said shaft, and adjustable zero stops for said gears; of an oscillatory frame, transmission gearing mounted on said frame, a device adjustable to oscillate said frame to connect said storage gears with said accumulator through the transmission gearing, and means operable upon rotation of the drive shaft in a given directon to adjust the first-named zero stops to active and the secondnamed stops to inactive position and operable at the end of a single rotation to release the oscillatory frame from transmission engaging position, said means being operable upon rotation of the drive shaft in the opposite direction to adjust the first-named zero stops to inactive and the second-named stops to active position.

GEORGE C. CHASE. 

